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shader: Implement FSET and FSETP

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Also fix oversight with adding SignedZeroInfNanPreserve execution mode.
This commit is contained in:
ameerj
2021-03-16 00:57:07 -04:00
parent 17a82b56d7
commit fa2f6e38f4
9 changed files with 204 additions and 94 deletions
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48
src/shader_recompiler/frontend/maxwell/translate/impl/common_funcs.cpp
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@ -58,4 +58,52 @@ IR::U1 PredicateOperation(IR::IREmitter& ir, const IR::U32& result, PredicateOp
}
}
bool IsCompareOpOrdered(FPCompareOp op) {
switch (op) {
case FPCompareOp::LTU:
case FPCompareOp::EQU:
case FPCompareOp::LEU:
case FPCompareOp::GTU:
case FPCompareOp::NEU:
case FPCompareOp::GEU:
return false;
default:
return true;
}
}
IR::U1 FloatingPointCompare(IR::IREmitter& ir, const IR::F32& operand_1, const IR::F32& operand_2,
FPCompareOp compare_op, IR::FpControl control) {
const bool ordered{IsCompareOpOrdered(compare_op)};
switch (compare_op) {
case FPCompareOp::F:
return ir.Imm1(false);
case FPCompareOp::LT:
case FPCompareOp::LTU:
return ir.FPLessThan(operand_1, operand_2, control, ordered);
case FPCompareOp::EQ:
case FPCompareOp::EQU:
return ir.FPEqual(operand_1, operand_2, control, ordered);
case FPCompareOp::LE:
case FPCompareOp::LEU:
return ir.FPLessThanEqual(operand_1, operand_2, control, ordered);
case FPCompareOp::GT:
case FPCompareOp::GTU:
return ir.FPGreaterThan(operand_1, operand_2, control, ordered);
case FPCompareOp::NE:
case FPCompareOp::NEU:
return ir.FPNotEqual(operand_1, operand_2, control, ordered);
case FPCompareOp::GE:
case FPCompareOp::GEU:
return ir.FPGreaterThanEqual(operand_1, operand_2, control, ordered);
case FPCompareOp::NUM:
return ir.FPOrdered(operand_1, operand_2);
case FPCompareOp::Nan:
return ir.FPUnordered(operand_1, operand_2);
case FPCompareOp::T:
return ir.Imm1(true);
default:
throw NotImplementedException("Invalid FP compare op {}", compare_op);
}
}
} // namespace Shader::Maxwell